Additive manufacturing for soft magnetic materials

Martin, Vincent; Frederic, Gillon; Najjar, Denis; Bénabou, Abdelkader; Witz, Jean-François; Hecquet, Michel; Quaegebeur, Philippe

doi:10.1109/intermag42984.2021.9579804

Cited by 5 publications

(4 citation statements)

References 14 publications

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“…To fabricate electro-technical products from magnetic materials, it is critical to develop a preliminary simulation-based design [41,[43][44][45][46][47][48]. This allows us to determine the optimal shape of the parts providing specific external magnetic characteristics of the product.…”

Section: Magnetic Parts Of Complex Shapesmentioning

confidence: 99%

3D Printing Technologies for Fabrication of Magnetic Materials Based on Metal–Polymer Composites: A Review

Mazeeva,

Masaylo,

Razumov

et al. 2023

Materials

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Additive manufacturing is a very rapidly developing industrial field. It opens many possibilities for the fast fabrication of complex-shaped products and devices, including functional materials and smart structures. This paper presents an overview of polymer 3D printing technologies currently used to produce magnetic materials and devices based on them. Technologies such as filament-fused modeling (FDM), direct ink writing (DIW), stereolithography (SLA), and binder jetting (BJ) are discussed. Their technological features, such as the optimal concentration of the filler, the shape and size of the filler particles, printing modes, etc., are considered to obtain bulk products with a high degree of detail and with a high level of magnetic properties. The polymer 3D technologies are compared with conventional technologies for manufacturing polymer-bonded magnets and with metal 3D technologies. This paper shows prospective areas of application of 3D polymer technologies for fabricating the magnetic elements of complex shapes, such as shim elements with an optimized shape and topology; advanced transformer cores; sensors; and, in particular, the fabrication of soft robots with a fast response to magnetic stimuli and composites based on smart fillers.

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Section: Magnetic Parts Of Complex Shapesmentioning

confidence: 99%

3D Printing Technologies for Fabrication of Magnetic Materials Based on Metal–Polymer Composites: A Review

Mazeeva,

Masaylo,

Razumov

et al. 2023

Materials

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“…The abovementioned improvement methods are, however, difficult or even impossible to apply without vast modification in the technological process of printing a designed device. In [23], the authors described a material that does not require major modifications in the normally used printing device. In the paper, a composite was simply a mixture of PLA and iron powder, with different powder-to-total-volume ratios.…”

Section: Simulation Of Magnetic Properties Of Composites Based On Mag...mentioning

confidence: 99%

“…Such a property is expected and allows for precise control of the material properties in the construction phase and easy assessment of them once the material is produced. Calculated values are compared in Table 1, along with the properties of materials and composites reported in the literature (denoted with 1 in [28], 2 in [20], and 3 in [23]). Particularly interesting is a comparison with materials based on iron powder: a sintered iron powder, a composite made of iron powder, and an epoxy resin bonded under high pressure (for a composite mentioned in Table 1 weight of iron powder was set to 99,5% of a whole material, which corresponds to a fill factor of 96.6%) and a composite made of PLA and iron powder with fill factor 40%.…”

Section: Magnetic Properties Of the Composite Based On Simulation Res...mentioning

confidence: 99%

“…At the same time, the obtained relative permeability value was better than that given for the "simple" PLA+iron powder composite. The authors of [23] do not give other magnetic parameters characterising the material, but even assuming linear characteristics (a very optimistic approach), the comparison indicates the superiority of the proposed composite over the traditional ones that are mixtures of polymers and magnetic powders. Both magnetic permeability and the value of the saturation magnetic flux density were larger for the proposed material than those of the composite based on magnetic powder having the same fill factor.…”

Section: Magnetic Properties Of the Composite Based On Simulation Res...mentioning

confidence: 99%

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3D Printing of Composite Material for Electromechanical Energy Harvesters

et al. 2022

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In this paper, a novel, composite material is proposed based on ferromagnetic wires immersed in a polymer that is well suited for 3D printing. The magnetic properties of this material are examined using FEM and compared with the properties of a more traditional composite based on magnetic powder. For a 50% ferromagnetic volume in the material, the proposed composite has a 67% higher value of saturation magnetic flux density and 87% higher value of maximum permeability, compared with the powder-based material. The authors believe that the proposed material could be used in the manufacturing of small electromechanical devices such as energy harvesters, thus vastly widening the possible fields of application related to 3D printing techniques.

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